162 MITROIDEA. 



Un figured Species. 

 T. JACULANDA, Goiild. Allied to T. reciirva, Reeve, but the 



sculpture is much more delicate. China Seas. 



T. SALTATA, Pease. Polynesia. 



T. EXQUisiTA, Garrett. Polynesia. 



T. VIOLACEA, Garrett. Polynesia. 



« 



(icnus MITROIDEA, Pease. 



The peculiar tuhular aud recurved anterior portion of the 

 columella, the truncate outer lip, the numerous small columellar 

 plaits, the smooth surface and outer lip "will distinguish this 

 genus upon conchological characters, although the animal and 

 its dentition do not differ from Mitra. Mitroidea has four years' 

 priority over Mauritia^X. Adams. The two species which H. and 

 A. Adams included in their sul)genus Mutyca, also belong here. 

 If Mutyca had a sufficient diagnosis it would be entitled to 

 precedence over 3Iitroidea on account of priority of publication, 

 but its authors only perceived a portion of the characters of the 

 group and made it an artificial section of Mitra. Mitroidea is 

 closely allied to TJibaphus^ but the latter has a shorter spire and 

 is without columellar plaits. 



M. MULTirLTCATA, Pease. PI, 4Y, figs. 372, 373. 



White, solid, polished under a thin light olive epidermis, with 



distant brown revolving lines and band-like maculations. 



Length, 1-2 inches. 



Polynesia ; Mauritius. 



Mr. Pease's species has never been figured, but the careful 



descriptions by himself and Garrett and the fact that he, like 



Adams, made his species the type of a new genus, leaves no 



doubt that M. Barclayi, H. Adams is synonj^mous with it. 



Dibaphiis Lcrbbeckeanus, Weinkaulf (fig. 373), is the juvenile of 



this species. Sowerby, w^ho does not mention Pease's prior 



name, changed M. Barclayi to 31. Dibaphiformis^ on account of 



the alleged prior publication of Mitra Barclayi^ Hanley. 



M. An'Cillides, Swainson. PI. 47, fig, 374, 



Pale fulvous yellow, or creamy white ; upper whorls niinutelj' 



granulated. Length, 20 mill. 



Paumotus Isles. 



